TECHNICAL INFORMATION
401
Capacities of Volumetric Ware
CLASS A and CLASS B TOLERANCES
Pipets
Volumetric Flasks 7
Burets 2
Graduated Cylinders 3
Measuring 4
Serological 5
Transfer 6
Standard
Wide Mouth
Class A 8 Tolerance, ± mL To Contain or To Deliver
Class A 8 Tolerance, ± mL
Class A 8 Tolerance, ± mL
Class A 8 Tolerance, ± mL To Contain
Class A 8 Tolernace, ± mL To Deliver
Capacity 1 , mL, Less than and Including
Class A 8 Tolerance, ± mL
Tolerance, ± mL
0.1
0.005
0.2
0.008
0.5
0.010
0.006
0.010
1
0.01
0.02
0.006
0.015
2
0.01
0.02
0.006
0.015
3
0.01
0.020
4
0.01
0.020
5
0.05
0.02
0.04
0.01
0.020
0.08
10
0.02
0.10
0.03
0.06
0.02
0.08
15
0.03
20
0.03
25
0.03
0.17
0.05
0.10
0.03
0.03
0.08
50
0.05
0.25
0.05
0.05
0.08
100
0.10
0.50
0.08
0.08
0.10
200
0.10
0.20
250
1.00
0.12
0.20
500
2.00
0.20
1000
3.00
0.30
2000
6.00
0.50
4000
14.50
1. Tolerances are established on the basis of capacity only and are independent of subdivisions.
2. From ASTM E287 - Standard Specification for Laboratory Glass Graduated Burets.
3. From ASTM E1272 - Standard Specification for Laboratory Glass Graduated Cylinders.
4. From ASTM E1293 - Standard Specification for Laboratory Glass Measuring Pipets.
5. From ASTM E1044 - Standard Specification for Laboratory Glass Serological Pipets (General Purpose and Kahn).
6. From ASTM E969 - Standard Specification for Laboratory Glass Volumetric (Transfer) Pipets.
7. From ASTM E237 and E288 - Standard Specification for Laboratory Glass Microvolumetric Vessels (Volumetric Flasks and Centrifuge Tubes), Standard Specification for Laboratory Glass Volumetric Flasks.
8. Tolerances of Class B glassware are twice as large as Class A glassware where not otherwise specified.
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